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32

METHOD PROCEDURE

INTERFERENCES

Interference may be caused by:
• Bromine, Iodine, Oxidized forms of Chromium and Manganese, Ozone
• Hardness greater than 500 mg/L CaCO

3

, to remove the interference shake the

sample for approximately 2 minutes after adding the powder reagent

• Alkalinity greater than 250 mg/L CaCO

3

or acidity greater than 150 mg/L CaCO

3

,

the color of the sample may develop only partially or may rapidly fade, to remove
the interference neutralize the sample with diluted HCl or NaOH

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Содержание HI97710

Страница 1: ...INSTRUCTION MANUAL HI97710 pH Free Chlorine Total Chlorine Photometer ...

Страница 2: ...g a Hanna Instruments product Pleasereadthisinstructionmanualcarefullybeforeusingthisinstrument This manual will provide you with the necessary information for correct use of this instrument as well as a precise idea of its versatility If you need additional technical information do not hesitate to e mail us at tech hannainst com or view our worldwide contact list at www hannainst com Dear Custome...

Страница 3: ...G RECALL 13 6 4 GENERAL SETUP 14 6 5 REAGENTS ACCESSORIES 16 6 6 CONTEXTUAL HELP 16 6 7 BATTERY MANAGEMENT 17 7 PHOTOMETER 18 7 1 METHOD SELECTION 18 7 2 COLLECTING MEASURING REAGENTS AND SAMPLES 18 7 3 CUVETTE PREPARATION 19 8 METHOD PROCEDURE 21 8 1 pH 21 8 2 FREE CHLORINE POWDER REAGENT 23 8 3 FREE CHLORINE LIQUID REAGENT 25 8 4 TOTAL CHLORINE POWDER REAGENT 28 8 5 TOTAL CHLORINE LIQUID REAGENT...

Страница 4: ...ette B for Free and Total Chlorine Powder Liquid HI97710B CAL Check Cuvette B for pH Cloth for wiping cuvettes Scissors 1 5V AA Alkaline batteries CAL Check standard certificate Instrument quality certificate Instruction manual Each HI97710 is delivered in a cardboard box and is supplied with Sample cuvette 2 pcs Sample cuvette cap 2 pcs Plastic stopper 2 pcs 1 5V AA Alkaline batteries Instrument ...

Страница 5: ...th plenty of water If reagent contacts skin rinse the affected area thoroughly with water Avoid breathing released vapors Waste disposal For proper disposal of reagent kits and reacted samples contact a licensed waste disposal provider 3 ABBREVIATIONS mg L milligrams per liter ppm mL milliliter C degree Celsius F degree Fahrenheit DPD N N Diethyl p phenylenediamine EPA US Environmental Protection ...

Страница 6: ...ndpass filter bandwidth 8 nm Bandpass filter wavelength accuracy 1 0 nm Light detector Silicon photocell Cuvette type Round 24 6 mm diameter 22 mm inside Additional Specifications Auto logging 50 readings Display 128 x 64 pixel B W LCD with backlight Auto off After 15 minutes of inactivity 30 minutes before a READ measurement Battery type 1 5 V AA Alkaline 3 pcs Battery life 800 measurements witho...

Страница 7: ...na Instruments CAL Check cuvettes are made with NIST traceable standards The built in tutorial mode guides users step by step through the measurement process It includes all steps required for sample preparation the required reagents and quantities The HI97710 meter measures free and total chlorine Cl2 in water samples from 0 00 to 5 00 mg L ppm and pH from 6 5 to 8 5 Chlorine is a widely used dis...

Страница 8: ...over Keypad Description The keypad contains 3 direct keys and 3 functional keys with the following functions Press the functional key to perform the function displayed above it on the LCD Press and hold to power off on Press briefly to return to the previous screen Press to access the menu screen Press to display the context sensitive help menu ...

Страница 9: ...on may be absorbed by atoms molecules or crystal lattices Photometric chemical analysis is based on specific chemical reactions between a sample and reagent to produce a light absorbing compound If pure absorption occurs the fraction of light absorbed depends both on the optical path length through the matter and on the physical chemical characteristics of the substance according to the Lambert Be...

Страница 10: ... luminous efficiency providing more light while using less power They also produce little heat which could otherwise affect electronic stability LEDs are available in a wide array of wavelengths whereas tungsten lamps have poor blue violet light output Improved optical filters ensure greater wavelength accuracy and allow a brighter stronger signal to be received The end result is higher measuremen...

Страница 11: ...ettes from direct sunlight by keeping them in the original packing Store between 5 and 30 C 41 to 86 F do not freeze To perform a CAL Check 1 Press the key to enter menu Use the functional keys to select CAL Check Calibration and press Select The Not Available message or the date time and status of the last CAL Check will be displayed on the screen Note CAL Check Calibration is for the selected me...

Страница 12: ... the value obtained during the measurement PASSED The measured value is within the accuracy specification no user calibration is required OUT OF SPECIFICATION and Calibrate is available The measured value is near the expected value To update the user calibration press Calibrate Press Accept to confirm or Cancel to return to the previous screen OUT OF SPECIFICATION A user calibration is not allowed...

Страница 13: ...ll measurements Every time a measurement is made the data is automatically saved The data log can hold 50 individual measurements When the data log is full 50 data points the meter will rewrite the oldest data point Viewing and deleting the data is possible using the Log Recall menu Press the key to enter the menu Use the functional keys to select Log Recall and press Select Use the functional key...

Страница 14: ...rease or decrease the value Press Accept to confirm or the key to return to the Setup menu without saving the new value Contrast Option 0 to 100 Press Modify to change the display s contrast Use the functional keys to increase or decrease the value Press Accept to confirm the value or the key to return to the Setup menu without saving the new value Date Time Press Modify to change the date and tim...

Страница 15: ...Option Comma or Period Press the functional key to select the desired decimal separator The decimal separator is used on the measurement screen Language Press Modify to change the language Use the functional keys to select the desired language Press Accept to choose one of the languages installed Beeper Option Enable or Disable When enabled a short beep is heard every time a key is pressed A long ...

Страница 16: ...tore Factory Settings Press Select to reset to factory settings Press Accept to confirm or Cancel to exit without restoring the factory settings 6 5 REAGENTS ACCESSORIES Press the key to enter the menu Use the functional keys to select Reagents Accessories and press Select to access a list of reagents and accessories To exit press the key 6 6 CONTEXTUAL HELP The HI97710 offers an interactive conte...

Страница 17: ...to diagnostic test when it is powered on During this test the Hanna Instruments logo will appear on the LCD If the auto diagnostic test was successful the meter is ready for use The battery icon on the LCD will indicate the battery status battery full battery below 10 replace the batteries soon battery is low replace the batteries with new ones To conserve battery the meter will turn off automatic...

Страница 18: ...n the instrument is powered off 7 2 COLLECTING MEASURING REAGENTS AND SAMPLES Proper Use of Powder Packet 1 Use scissors to open the powder packet 2 Push the edges of the packet to form a spout 3 Pour out the content of the packet Proper Use of Dropper Bottle 1 Tap the dropper on the table several times and wipe the outside of the tip with a cloth 2 Always keep the dropper bottle in a vertical pos...

Страница 19: ...ing icons b The mixing method is indicated with swirl using one of the following icons In order to avoid reagent leaking and to obtain more accurate measurements close the cuvette first with the supplied HDPE plastic stopper and then the black cap Whenever the cuvette is placed into the measurement holder it must be dry outside and free of fingerprints oil or dirt Wipe it thoroughly with HI731318 ...

Страница 20: ...in each method It is possible to take multiple readings in a row but it is recommended to take a new zero reading for each sample and to use the same cuvette for zeroing and measurement when possible Discard the sample immediately after the reading has been taken or the glass might become permanently stained All the reaction times reported in this manual are at 25 C 77 F In general the reaction ti...

Страница 21: ... described in the METHOD SELECTION section Note If tutorial mode is disabled follow the measurement procedure below If the tutorial mode is enabled press Measure and follow the messages on the screen Fill the cuvette with 10 mL of unreacted sample up to the mark Replace the plastic stopper and the cap Insert the cuvette into the holder and ensure that the notch on the cap is positioned securely in...

Страница 22: ...0 0 pH Reagent indicator Replace the plastic stopper and the cap Swirl to mix Insert the cuvette into the holder and ensure that the notch on the cap is positioned securely in the groove Press Read to start the reading The instrument displays the results in pH 5 ...

Страница 23: ...see ACCESSORIES section MEASUREMENT PROCEDURE Select the Free Chlorine Powder method using the procedure described in the METHOD SELECTION section Note If tutorial mode is disabled follow the measurement procedure below If the tutorial mode is enabled press Measure and follow the messages on the screen Fill the cuvette with 10 mL of unreacted sample up to the mark Replace the plastic stopper and t...

Страница 24: ...wice When the timer ends the meter will perform the reading The instrument displays the results in mg L of chlorine Cl2 INTERFERENCES Interference may be caused by Bromine Iodine Oxidized forms of Chromium and Manganese Ozone Hardness greater than 500 mg L CaCO3 to remove the interference shake the sample for approximately 2 minutes after adding the powder reagent Alkalinity greater than 250 mg L ...

Страница 25: ... see ACCESSORIES section MEASUREMENT PROCEDURE Select the Free Chlorine Liquid method using the procedure described in the METHOD SELECTION section Note If tutorial mode is disabled follow the measurement procedure below If the tutorial mode is enabled press Measure and follow the messages on the screen Fill the cuvette with 10 mL of unreacted sample up to the mark Replace the plastic stopper and ...

Страница 26: ...the mark Replace the plastic stopper and the cap Shake gently to mix Insert the cuvette into the holder and ensure that the notch on the cap is positioned securely in the groove Press Read The display will show a 1 minute countdown prior to the measurement To skip the timer press Read twice When the timer ends the meter will perform the reading The instrument displays the results in mg L of chlori...

Страница 27: ...an 500 mg L CaCO3 to remove the interference shake the sample for approximately 2 minutes after adding the powder reagent Alkalinity greater than 250 mg L CaCO3 or acidity value greater than 150 mg L CaCO3 the color of the sample may develop only partially or rapidly fade to remove the interference neutralize the sample with diluted HCl or NaOH ...

Страница 28: ...s see ACCESSORIES section MEASUREMENT PROCEDURE Select the Total Chlorine Powder method using the procedure described in the METHOD SELECTION section Note If tutorial mode is disabled follow the measurement procedure below If the tutorial mode is enabled press Measure and follow the messages on the screen Fill the cuvette with 10 mL of unreacted sample up to the mark Replace the plastic stopper an...

Страница 29: ...ce When the timer ends the meter will perform the reading The instrument displays the results in mg L of chlorine Cl2 INTERFERENCES Interference may be caused by Bromine Iodine Oxidized forms of Chromium and Manganese Ozone Hardness greater than 500 mg L CaCO3 to remove the interference shake the sample for approximately 2 minutes after adding the powder reagent Alkalinity greater than 250 mg L Ca...

Страница 30: ...s For other accessories see ACCESSORIES section MEASUREMENT PROCEDURE Select the Total Chlorine Liquid method using the procedure described in the METHOD SELECTION section Note If tutorial mode is disabled follow the measurement procedure below If the tutorial mode is enabled press Measure and follow the messages on the screen Fill the cuvette with 10 mL of unreacted sample up to the mark Replace ...

Страница 31: ...cted sample up to the mark Replace the plastic stopper and the cap Shake gently to mix Insert the cuvette into the holder and ensure that the notch on the cap is positioned securely in the groove Press Read The display will show a 2 minute 30 second countdown prior to the measurement To skip the timer press Read twice When the timer ends the meter will perform the reading The instrument displays t...

Страница 32: ...han 500 mg L CaCO3 to remove the interference shake the sample for approximately 2 minutes after adding the powder reagent Alkalinity greater than 250 mg L CaCO3 or acidity greater than 150 mg L CaCO3 the color of the sample may develop only partially or may rapidly fade to remove the interference neutralize the sample with diluted HCl or NaOH ...

Страница 33: ...zero cuvettes are inverted Swap the cuvettes and repeat the measurement There is either too much light or the instrument can not adjust the light level Please check the preparation of the zero cuvette and that the sample does not contain any debris The meter is either overheating or its temperature has dropped too low to operate within published accuracy specifications The meter must be between 0 ...

Страница 34: ...he meter If the issue persists please contact Hanna Instruments technical support Battery level is too low for the meter to function properly Replace the batteries with new ones Tutorial mode has been enabled in the Setup menu Press Continue and follow the prompt on the screen Tutorial mode can be disabled in the Setup menu A critical error has occurred Restart the meter If the issue persists plea...

Страница 35: ...ent s batteries follow these steps Turn the instrument off by pressing and holding the key Remove the battery cover by turning it counterclockwise Remove the old batteries replace them with three new 1 5V AA batteries Replace the battery cover turn it clockwise to close ...

Страница 36: ... 03 pH Reagent 300 tests HI93711 01 Total Chlorine Reagent 100 tests powder HI93711 03 Total Chlorine Reagent 300 tests powder 11 2 OTHER ACCESSORIES Code Description HI7101413 blue carrying case for HI977xx and 3 CAL Check cuvettes HI731318 cloth for wiping cuvettes 4 pcs HI731331 glass cuvette 4 pcs HI731336N cap for glass cuvette 4 pcs HI93703 50 cuvette cleaning solution 230 mL HI97701 11 CAL ...

Страница 37: ...aste Hand them over to the appropriate collection point for recycling Ensuring proper product and battery disposal prevents potential negative consequences fortheenvironmentandhumanhealth Formoreinformation contactyourcity yourlocal household waste disposal service the place of purchase or go to www hannainst com RECOMMENDATIONS FOR USERS Before using this product make sure it is entirely suitable...

Страница 38: ...d contact your local Hanna Instruments Office If under warranty report the model number date of purchase serial number engraved on the bottom of the meter and the nature of the problem If the repair is not covered by the warranty you will be notified of the charges incurred If the meter is to be returned to Hanna Instruments first obtain a Returned Goods Authorization RGA number from the Technical...

Страница 39: ...Hanna Instruments reserves the right to modify the design construction or appearance of its products without advance notice ...

Страница 40: ...World Headquarters Hanna Instruments Inc Highland Industrial Park 584 Park East Drive Woonsocket RI 02895 USA www hannainst com MAN97710 Printed in ROMANIA ...

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